Results 171 to 180 of about 11,155 (262)
Global groundwater contamination by geogenic fluoride. [PDF]
Ali S +31 more
europepmc +1 more source
Recent Advances in Oriented Hydrogels: From Fundamental Mechanisms to Future Challenges
Traditional hydrogels suffer from weak mechanical properties and limited functionality due to their random polymer networks. This review comprehensively summarizes the reinforcement mechanisms of oriented structure for hydrogels, the design/fabrication strategies, and the latest application progress of high‐strength oriented hydrogels.
Chang Xu, Xijing Zhuang
wiley +1 more source
Characteristics of the Coal-Associated Shale and Its Paleoenvironmental Analysis of the Upper Triassic Tumengela Formation in the Central Part of the Qiangtang Basin. [PDF]
Peng Q +7 more
europepmc +1 more source
Five Decades of Dispute: A Triptych. E. J. Corey
In his 2004 Priestley Medal address, E. J. Corey stated, “On May 4, 1964, I suggested to my colleague R. B. Woodward a simple explanation involving the symmetry of the perturbed (HOMO) molecular orbitals for the stereoselective cyclobutene/1,3‐butadiene and 1,3,5‐hexatriene/cyclohexadiene conversions that provided the basis for the further development ...
Jeffrey I. Seeman
wiley +1 more source
Quantitative Measurement and Analytical Modeling of Terahertz Wave Transmission in Natural Rock Materials Under Drying-Wetting Cycles. [PDF]
Li Y, Yao Q, Liu K, Han M, Xu Q, Xia Z.
europepmc +1 more source
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp +4 more
wiley +1 more source
Distribution and fracture characteristics of major lithologic associations in the Upper Paleozoic Ordos Basin. [PDF]
Zhang Z +9 more
europepmc +1 more source
ABSTRACT The Peixoto de Azevedo River, located in northern Mato Grosso, southern Brazilian Amazon, has a long history of artisanal and small‐scale gold mining (ASGM). This study evaluated total mercury (THg) concentrations in fish tissues to assess biomagnification and potential risks.
Augusto Cesar da Costa Castilho +5 more
wiley +1 more source
Influence of specimen size and formation genesis on the dynamic mechanical behavior of rock types using SHPB. [PDF]
Mishra S, Chakraborty T.
europepmc +1 more source
ABSTRACT Natural radionuclides in cement and gypsum production materials pose significant risks of occupational radiation exposure that are not well documented in Iraqi Kurdistan. This study quantifies alpha and gamma radiation levels from naturally occurring radioactive materials, specifically 222Rn, 238U, 232Th, and 40K, in cement and gypsum samples ...
Adil M. Hussien +4 more
wiley +1 more source

